Finding the Fourth Proportional to 488,872,799.56, 676,420,988.84 and 426,279,420.28
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Solution
The fourth proportional to 488,872,799.56, 676,420,988.84 and 426,279,420.28 is: 589,814,666.00
Step by Step Solution
- Step 1: Write the proportion equation
488,872,799.56 : 676,420,988.84 = 426,279,420.28 : x - Step 2: Convert to fraction form
488,872,799.56/676,420,988.84 = 426,279,420.28/x - Step 3: Cross multiply
488,872,799.56x = 676,420,988.84 × 426,279,420.28 - Step 4: Simplify right side
488,872,799.56x = 288,344,346,987,939,520 - Step 5: Solve for x
x = 288,344,346,987,939,520/488,872,799.56 - Step 6: Final answer
x = 589,814,666.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.